public override void OutABinopExp(ABinopExp node)
{
if (node.GetBinop() is AEqBinop || node.GetBinop() is ANeBinop)
{
if (node.GetLeft() is ANullExp || node.GetRight() is ANullExp)
{
if (node.GetLeft() is ANullExp)
{
//Swap left and right
PExp temp = node.GetLeft();
node.SetLeft(node.GetRight());
node.SetRight(temp);
}
PExp exp = node.GetLeft();
PType type = data.ExpTypes[exp];
if (type is APointerType)
{
if (node.GetBinop() is ANeBinop)
{
//Convert a != null to !(a == null)
AUnopExp unop = new AUnopExp(new AComplementUnop(new TComplement("!")), null);
node.ReplaceBy(unop);
unop.SetExp(node);
node.SetBinop(new AEqBinop(new TEq("==")));
data.ExpTypes[unop] = new ANamedType(new TIdentifier("bool"), null);
}
if (Util.IsIntPointer(node, ((APointerType)type).GetType(), data))
{
bool add = true;
foreach (PType pType in TypesWithIdentifierArray)
{
if (Util.TypesEqual(((APointerType)type).GetType(), pType, data))
{
add = false;
break;
}
}
if (add)
TypesWithIdentifierArray.Add(((APointerType)type).GetType());
}
}
}
}
}